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dv: K&R formatting cosmetics

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Signed-off-by: Diego Biurrun <diego@biurrun.de>
pull/88/head
Gabriel Dume 10 years ago committed by Diego Biurrun
parent f629705b02
commit ee0ebd3c14
7 changed files with 1029 additions and 989 deletions
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  1. 145
      libavcodec/dv.c
  2. 27
      libavcodec/dv.h
  3. 91
      libavcodec/dv_profile.c
  4. 20
      libavcodec/dv_tablegen.h
  5. 46
      libavcodec/dvdata.c
  6. 100
      libavcodec/dvdec.c
  7. 303
      libavcodec/dvenc.c

145
libavcodec/dv.c
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@ -40,124 +40,131 @@
#include "libavutil/internal.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "dv.h"
#include "dvdata.h"
#include "get_bits.h"
#include "internal.h"
#include "put_bits.h"
#include "simple_idct.h"
#include "dvdata.h"
#include "dv.h"
/* XXX: also include quantization */
RL_VLC_ELEM ff_dv_rl_vlc[1184];
static inline void dv_calc_mb_coordinates(const AVDVProfile *d, int chan, int seq, int slot,
uint16_t *tbl)
static inline void dv_calc_mb_coordinates(const AVDVProfile *d, int chan,
int seq, int slot, uint16_t *tbl)
{
static const uint8_t off[] = { 2, 6, 8, 0, 4 };
static const uint8_t shuf1[] = { 36, 18, 54, 0, 72 };
static const uint8_t shuf2[] = { 24, 12, 36, 0, 48 };
static const uint8_t shuf3[] = { 18, 9, 27, 0, 36 };
static const uint8_t l_start[] = {0, 4, 9, 13, 18, 22, 27, 31, 36, 40};
static const uint8_t l_start[] = { 0, 4, 9, 13, 18, 22, 27, 31, 36, 40 };
static const uint8_t l_start_shuffled[] = { 9, 4, 13, 0, 18 };
static const uint8_t serpent1[] = {0, 1, 2, 2, 1, 0,
static const uint8_t serpent1[] = {
0, 1, 2, 2, 1, 0,
0, 1, 2, 2, 1, 0,
0, 1, 2, 2, 1, 0,
0, 1, 2, 2, 1, 0,
0, 1, 2};
static const uint8_t serpent2[] = {0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0,
0, 1, 2
};
static const uint8_t serpent2[] = {
0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0,
0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0,
0, 1, 2, 3, 4, 5};
static const uint8_t remap[][2] = {{ 0, 0}, { 0, 0}, { 0, 0}, { 0, 0}, /* dummy */
{ 0, 0}, { 0, 1}, { 0, 2}, { 0, 3}, {10, 0},
{10, 1}, {10, 2}, {10, 3}, {20, 0}, {20, 1},
{20, 2}, {20, 3}, {30, 0}, {30, 1}, {30, 2},
{30, 3}, {40, 0}, {40, 1}, {40, 2}, {40, 3},
{50, 0}, {50, 1}, {50, 2}, {50, 3}, {60, 0},
{60, 1}, {60, 2}, {60, 3}, {70, 0}, {70, 1},
{70, 2}, {70, 3}, { 0,64}, { 0,65}, { 0,66},
{10,64}, {10,65}, {10,66}, {20,64}, {20,65},
{20,66}, {30,64}, {30,65}, {30,66}, {40,64},
{40,65}, {40,66}, {50,64}, {50,65}, {50,66},
{60,64}, {60,65}, {60,66}, {70,64}, {70,65},
{70,66}, { 0,67}, {20,67}, {40,67}, {60,67}};
0, 1, 2, 3, 4, 5
};
static const uint8_t remap[][2] = {
{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, /* dummy */
{ 0, 0 }, { 0, 1 }, { 0, 2 }, { 0, 3 }, { 10, 0 },
{ 10, 1 }, { 10, 2 }, { 10, 3 }, { 20, 0 }, { 20, 1 },
{ 20, 2 }, { 20, 3 }, { 30, 0 }, { 30, 1 }, { 30, 2 },
{ 30, 3 }, { 40, 0 }, { 40, 1 }, { 40, 2 }, { 40, 3 },
{ 50, 0 }, { 50, 1 }, { 50, 2 }, { 50, 3 }, { 60, 0 },
{ 60, 1 }, { 60, 2 }, { 60, 3 }, { 70, 0 }, { 70, 1 },
{ 70, 2 }, { 70, 3 }, { 0, 64 }, { 0, 65 }, { 0, 66 },
{ 10, 64 }, { 10, 65 }, { 10, 66 }, { 20, 64 }, { 20, 65 },
{ 20, 66 }, { 30, 64 }, { 30, 65 }, { 30, 66 }, { 40, 64 },
{ 40, 65 }, { 40, 66 }, { 50, 64 }, { 50, 65 }, { 50, 66 },
{ 60, 64 }, { 60, 65 }, { 60, 66 }, { 70, 64 }, { 70, 65 },
{ 70, 66 }, { 0, 67 }, { 20, 67 }, { 40, 67 }, { 60, 67 }
};
int i, k, m;
int x, y, blk;
for (m=0; m<5; m++) {
for (m = 0; m < 5; m++) {
switch (d->width) {
case 1440:
blk = (chan*11+seq)*27+slot;
blk = (chan * 11 + seq) * 27 + slot;
if (chan == 0 && seq == 11) {
x = m*27+slot;
if (x<90) {
x = m * 27 + slot;
if (x < 90) {
y = 0;
} else {
x = (x - 90)*2;
x = (x - 90) * 2;
y = 67;
}
} else {
i = (4*chan + blk + off[m])%11;
k = (blk/11)%27;
i = (4 * chan + blk + off[m]) % 11;
k = (blk / 11) % 27;
x = shuf1[m] + (chan&1)*9 + k%9;
y = (i*3+k/9)*2 + (chan>>1) + 1;
x = shuf1[m] + (chan & 1) * 9 + k % 9;
y = (i * 3 + k / 9) * 2 + (chan >> 1) + 1;
}
tbl[m] = (x<<1)|(y<<9);
tbl[m] = (x << 1) | (y << 9);
break;
case 1280:
blk = (chan*10+seq)*27+slot;
blk = (chan * 10 + seq) * 27 + slot;
i = (4*chan + (seq/5) + 2*blk + off[m])%10;
k = (blk/5)%27;
i = (4 * chan + (seq / 5) + 2 * blk + off[m]) % 10;
k = (blk / 5) % 27;
x = shuf1[m]+(chan&1)*9 + k%9;
y = (i*3+k/9)*2 + (chan>>1) + 4;
x = shuf1[m] + (chan & 1) * 9 + k % 9;
y = (i * 3 + k / 9) * 2 + (chan >> 1) + 4;
if (x >= 80) {
x = remap[y][0]+((x-80)<<(y>59));
x = remap[y][0] + ((x - 80) << (y > 59));
y = remap[y][1];
}
tbl[m] = (x<<1)|(y<<9);
tbl[m] = (x << 1) | (y << 9);
break;
case 960:
blk = (chan*10+seq)*27+slot;
blk = (chan * 10 + seq) * 27 + slot;
i = (4*chan + (seq/5) + 2*blk + off[m])%10;
k = (blk/5)%27 + (i&1)*3;
i = (4 * chan + (seq / 5) + 2 * blk + off[m]) % 10;
k = (blk / 5) % 27 + (i & 1) * 3;
x = shuf2[m] + k%6 + 6*(chan&1);
y = l_start[i] + k/6 + 45*(chan>>1);
tbl[m] = (x<<1)|(y<<9);
x = shuf2[m] + k % 6 + 6 * (chan & 1);
y = l_start[i] + k / 6 + 45 * (chan >> 1);
tbl[m] = (x << 1) | (y << 9);
break;
case 720:
switch (d->pix_fmt) {
case AV_PIX_FMT_YUV422P:
x = shuf3[m] + slot/3;
x = shuf3[m] + slot / 3;
y = serpent1[slot] +
((((seq + off[m]) % d->difseg_size)<<1) + chan)*3;
tbl[m] = (x<<1)|(y<<8);
((((seq + off[m]) % d->difseg_size) << 1) + chan) * 3;
tbl[m] = (x << 1) | (y << 8);
break;
case AV_PIX_FMT_YUV420P:
x = shuf3[m] + slot/3;
x = shuf3[m] + slot / 3;
y = serpent1[slot] +
((seq + off[m]) % d->difseg_size)*3;
tbl[m] = (x<<1)|(y<<9);
((seq + off[m]) % d->difseg_size) * 3;
tbl[m] = (x << 1) | (y << 9);
break;
case AV_PIX_FMT_YUV411P:
i = (seq + off[m]) % d->difseg_size;
k = slot + ((m==1||m==2)?3:0);
k = slot + ((m == 1 || m == 2) ? 3 : 0);
x = l_start_shuffled[m] + k/6;
y = serpent2[k] + i*6;
if (x>21)
y = y*2 - i*6;
tbl[m] = (x<<2)|(y<<8);
x = l_start_shuffled[m] + k / 6;
y = serpent2[k] + i * 6;
if (x > 21)
y = y * 2 - i * 6;
tbl[m] = (x << 2) | (y << 8);
break;
}
default:
@ -177,7 +184,7 @@ static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 };
int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const AVDVProfile *d)
{
int j,i,c,s,p;
int j, i, c, s, p;
uint32_t *factor1, *factor2;
const int *iweight1, *iweight2;
@ -240,10 +247,10 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
if (!done) {
VLC dv_vlc;
uint16_t new_dv_vlc_bits[NB_DV_VLC*2];
uint8_t new_dv_vlc_len[NB_DV_VLC*2];
uint8_t new_dv_vlc_run[NB_DV_VLC*2];
int16_t new_dv_vlc_level[NB_DV_VLC*2];
uint16_t new_dv_vlc_bits[NB_DV_VLC * 2];
uint8_t new_dv_vlc_len[NB_DV_VLC * 2];
uint8_t new_dv_vlc_run[NB_DV_VLC * 2];
int16_t new_dv_vlc_level[NB_DV_VLC * 2];
done = 1;
@ -267,21 +274,21 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
}
/* NOTE: as a trick, we use the fact the no codes are unused
to accelerate the parsing of partial codes */
init_vlc(&dv_vlc, TEX_VLC_BITS, j,
new_dv_vlc_len, 1, 1, new_dv_vlc_bits, 2, 2, 0);
* to accelerate the parsing of partial codes */
init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len,
1, 1, new_dv_vlc_bits, 2, 2, 0);
assert(dv_vlc.table_size == 1184);
for (i = 0; i < dv_vlc.table_size; i++){
for (i = 0; i < dv_vlc.table_size; i++) {
int code = dv_vlc.table[i][0];
int len = dv_vlc.table[i][1];
int level, run;
if (len < 0){ //more bits needed
if (len < 0) { // more bits needed
run = 0;
level = code;
} else {
run = new_dv_vlc_run [code] + 1;
run = new_dv_vlc_run[code] + 1;
level = new_dv_vlc_level[code];
}
ff_dv_rl_vlc[i].len = len;

27
libavcodec/dv.h
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@ -28,9 +28,9 @@
#define AVCODEC_DV_H
#include "avcodec.h"
#include "me_cmp.h"
#include "get_bits.h"
#include "dv_profile.h"
#include "get_bits.h"
#include "me_cmp.h"
typedef struct DVwork_chunk {
uint16_t buf_offset;
@ -81,8 +81,8 @@ enum dv_pack_type {
#define DV_PROFILE_IS_720p50(p) (((p)->video_stype == 0x18) && ((p)->dsf == 1))
/* minimum number of bytes to read from a DV stream in order to
determine the profile */
#define DV_PROFILE_BYTES (6*80) /* 6 DIF blocks */
* determine the profile */
#define DV_PROFILE_BYTES (6 * 80) /* 6 DIF blocks */
/**
* largest possible DV frame, in bytes (1080i50)
@ -103,23 +103,26 @@ int ff_dvvideo_init(AVCodecContext *avctx);
static inline int dv_work_pool_size(const AVDVProfile *d)
{
int size = d->n_difchan*d->difseg_size*27;
int size = d->n_difchan * d->difseg_size * 27;
if (DV_PROFILE_IS_1080i50(d))
size -= 3*27;
size -= 3 * 27;
if (DV_PROFILE_IS_720p50(d))
size -= 4*27;
size -= 4 * 27;
return size;
}
static inline void dv_calculate_mb_xy(DVVideoContext *s, DVwork_chunk *work_chunk, int m, int *mb_x, int *mb_y)
static inline void dv_calculate_mb_xy(DVVideoContext *s,
DVwork_chunk *work_chunk,
int m, int *mb_x, int *mb_y)
{
*mb_x = work_chunk->mb_coordinates[m] & 0xff;
*mb_y = work_chunk->mb_coordinates[m] >> 8;
/* We work with 720p frames split in half. The odd half-frame (chan==2,3) is displaced :-( */
if (s->sys->height == 720 && !(s->buf[1]&0x0C)) {
*mb_y -= (*mb_y>17)?18:-72; /* shifting the Y coordinate down by 72/2 macro blocks */
}
/* We work with 720p frames split in half.
* The odd half-frame (chan == 2,3) is displaced :-( */
if (s->sys->height == 720 && !(s->buf[1] & 0x0C))
/* shifting the Y coordinate down by 72/2 macro blocks */
*mb_y -= (*mb_y > 17) ? 18 : -72;
}
#endif /* AVCODEC_DV_H */

91
libavcodec/dv_profile.c
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@ -16,13 +16,14 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include "config.h"
#include <stdint.h>
#include "libavutil/common.h"
#include "libavutil/log.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "dv_profile.h"
#include "dv_profile_internal.h"
@ -44,19 +45,19 @@ static const uint8_t dv_audio_shuffle525[10][9] = {
};
static const uint8_t dv_audio_shuffle625[12][9] = {
{ 0, 36, 72, 26, 62, 98, 16, 52, 88}, /* 1st channel */
{ 6, 42, 78, 32, 68, 104, 22, 58, 94},
{ 12, 48, 84, 2, 38, 74, 28, 64, 100},
{ 18, 54, 90, 8, 44, 80, 34, 70, 106},
{ 24, 60, 96, 14, 50, 86, 4, 40, 76},
{ 30, 66, 102, 20, 56, 92, 10, 46, 82},
{ 0, 36, 72, 26, 62, 98, 16, 52, 88 }, /* 1st channel */
{ 6, 42, 78, 32, 68, 104, 22, 58, 94 },
{ 12, 48, 84, 2, 38, 74, 28, 64, 100 },
{ 18, 54, 90, 8, 44, 80, 34, 70, 106 },
{ 24, 60, 96, 14, 50, 86, 4, 40, 76 },
{ 30, 66, 102, 20, 56, 92, 10, 46, 82 },
{ 1, 37, 73, 27, 63, 99, 17, 53, 89}, /* 2nd channel */
{ 7, 43, 79, 33, 69, 105, 23, 59, 95},
{ 13, 49, 85, 3, 39, 75, 29, 65, 101},
{ 19, 55, 91, 9, 45, 81, 35, 71, 107},
{ 25, 61, 97, 15, 51, 87, 5, 41, 77},
{ 31, 67, 103, 21, 57, 93, 11, 47, 83},
{ 1, 37, 73, 27, 63, 99, 17, 53, 89 }, /* 2nd channel */
{ 7, 43, 79, 33, 69, 105, 23, 59, 95 },
{ 13, 49, 85, 3, 39, 75, 29, 65, 101 },
{ 19, 55, 91, 9, 45, 81, 35, 71, 107 },
{ 25, 61, 97, 15, 51, 87, 5, 41, 77 },
{ 31, 67, 103, 21, 57, 93, 11, 47, 83 },
};
/* macroblock bit budgets */
@ -78,15 +79,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 30,
.height = 480,
.width = 720,
.sar = {{8, 9}, {32, 27}},
.sar = { { 8, 9 }, { 32, 27 } },
.pix_fmt = AV_PIX_FMT_YUV411P,
.bpm = 6,
.block_sizes = block_sizes_dv2550,
.audio_stride = 90,
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
.audio_shuffle = dv_audio_shuffle525,
},
.audio_shuffle = dv_audio_shuffle525, },
{ .dsf = 1,
.video_stype = 0x0,
.frame_size = 144000, /* IEC 61834 - 625/50 (PAL) */
@ -96,15 +96,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 25,
.height = 576,
.width = 720,
.sar = {{16, 15}, {64, 45}},
.sar = { { 16, 15 }, { 64, 45 } },
.pix_fmt = AV_PIX_FMT_YUV420P,
.bpm = 6,
.block_sizes = block_sizes_dv2550,
.audio_stride = 108,
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
.audio_shuffle = dv_audio_shuffle625,
},
.audio_shuffle = dv_audio_shuffle625, },
{ .dsf = 1,
.video_stype = 0x0,
.frame_size = 144000, /* SMPTE-314M - 625/50 (PAL) */
@ -114,15 +113,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 25,
.height = 576,
.width = 720,
.sar = {{16, 15}, {64, 45}},
.sar = { { 16, 15 }, { 64, 45 } },
.pix_fmt = AV_PIX_FMT_YUV411P,
.bpm = 6,
.block_sizes = block_sizes_dv2550,
.audio_stride = 108,
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
.audio_shuffle = dv_audio_shuffle625,
},
.audio_shuffle = dv_audio_shuffle625, },
{ .dsf = 0,
.video_stype = 0x4,
.frame_size = 240000, /* SMPTE-314M - 525/60 (NTSC) 50 Mbps */
@ -132,15 +130,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 30,
.height = 480,
.width = 720,
.sar = {{8, 9}, {32, 27}},
.sar = { { 8, 9 }, { 32, 27 } },
.pix_fmt = AV_PIX_FMT_YUV422P,
.bpm = 6,
.block_sizes = block_sizes_dv2550,
.audio_stride = 90,
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
.audio_shuffle = dv_audio_shuffle525,
},
.audio_shuffle = dv_audio_shuffle525, },
{ .dsf = 1,
.video_stype = 0x4,
.frame_size = 288000, /* SMPTE-314M - 625/50 (PAL) 50 Mbps */
@ -150,15 +147,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 25,
.height = 576,
.width = 720,
.sar = {{16, 15}, {64, 45}},
.sar = { { 16, 15 }, { 64, 45 } },
.pix_fmt = AV_PIX_FMT_YUV422P,
.bpm = 6,
.block_sizes = block_sizes_dv2550,
.audio_stride = 108,
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
.audio_shuffle = dv_audio_shuffle625,
},
.audio_shuffle = dv_audio_shuffle625, },
{ .dsf = 0,
.video_stype = 0x14,
.frame_size = 480000, /* SMPTE-370M - 1080i60 100 Mbps */
@ -168,15 +164,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 30,
.height = 1080,
.width = 1280,
.sar = {{1, 1}, {3, 2}},
.sar = { { 1, 1 }, { 3, 2 } },
.pix_fmt = AV_PIX_FMT_YUV422P,
.bpm = 8,
.block_sizes = block_sizes_dv100,
.audio_stride = 90,
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
.audio_shuffle = dv_audio_shuffle525,
},
.audio_shuffle = dv_audio_shuffle525, },
{ .dsf = 1,
.video_stype = 0x14,
.frame_size = 576000, /* SMPTE-370M - 1080i50 100 Mbps */
@ -186,15 +181,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 25,
.height = 1080,
.width = 1440,
.sar = {{1, 1}, {4, 3}},
.sar = { { 1, 1 }, { 4, 3 } },
.pix_fmt = AV_PIX_FMT_YUV422P,
.bpm = 8,
.block_sizes = block_sizes_dv100,
.audio_stride = 108,
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
.audio_shuffle = dv_audio_shuffle625,
},
.audio_shuffle = dv_audio_shuffle625, },
{ .dsf = 0,
.video_stype = 0x18,
.frame_size = 240000, /* SMPTE-370M - 720p60 100 Mbps */
@ -204,15 +198,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 60,
.height = 720,
.width = 960,
.sar = {{1, 1}, {4, 3}},
.sar = { { 1, 1 }, { 4, 3 } },
.pix_fmt = AV_PIX_FMT_YUV422P,
.bpm = 8,
.block_sizes = block_sizes_dv100,
.audio_stride = 90,
.audio_min_samples = { 1580, 1452, 1053 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1600, 1602, 1602, 1602, 1602 }, /* per SMPTE-314M */
.audio_shuffle = dv_audio_shuffle525,
},
.audio_shuffle = dv_audio_shuffle525, },
{ .dsf = 1,
.video_stype = 0x18,
.frame_size = 288000, /* SMPTE-370M - 720p50 100 Mbps */
@ -222,15 +215,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 50,
.height = 720,
.width = 960,
.sar = {{1, 1}, {4, 3}},
.sar = { { 1, 1 }, { 4, 3 } },
.pix_fmt = AV_PIX_FMT_YUV422P,
.bpm = 8,
.block_sizes = block_sizes_dv100,
.audio_stride = 90,
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
.audio_shuffle = dv_audio_shuffle625,
},
.audio_shuffle = dv_audio_shuffle625, },
{ .dsf = 1,
.video_stype = 0x1,
.frame_size = 144000, /* IEC 61883-5 - 625/50 (PAL) */
@ -240,15 +232,14 @@ static const AVDVProfile dv_profiles[] = {
.ltc_divisor = 25,
.height = 576,
.width = 720,
.sar = {{16, 15}, {64, 45}},
.sar = { { 16, 15 }, { 64, 45 } },
.pix_fmt = AV_PIX_FMT_YUV420P,
.bpm = 6,
.block_sizes = block_sizes_dv2550,
.audio_stride = 108,
.audio_min_samples = { 1896, 1742, 1264 }, /* for 48, 44.1 and 32kHz */
.audio_samples_dist = { 1920, 1920, 1920, 1920, 1920 },
.audio_shuffle = dv_audio_shuffle625,
}
.audio_shuffle = dv_audio_shuffle625, }
};
void ff_dv_print_profiles(void *logctx, int loglevel)
@ -256,8 +247,9 @@ void ff_dv_print_profiles(void *logctx, int loglevel)
int i;
for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++) {
const AVDVProfile *p = &dv_profiles[i];
av_log(logctx, loglevel, "Frame size: %dx%d; pixel format: %s, "
"framerate: %d/%d\n", p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
av_log(logctx, loglevel,
"Frame size: %dx%d; pixel format: %s, framerate: %d/%d\n",
p->width, p->height, av_get_pix_fmt_name(p->pix_fmt),
p->time_base.den, p->time_base.num);
}
}
@ -265,7 +257,7 @@ void ff_dv_print_profiles(void *logctx, int loglevel)
#endif /* CONFIG_DVPROFILE */
const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
const uint8_t* frame, unsigned buf_size)
const uint8_t *frame, unsigned buf_size)
{
#if CONFIG_DVPROFILE
int i, dsf, stype;
@ -277,9 +269,8 @@ const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
stype = frame[80 * 5 + 48 + 3] & 0x1f;
/* 576i50 25Mbps 4:1:1 is a special case */
if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) {
if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */)
return &dv_profiles[2];
}
for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
if (dsf == dv_profiles[i].dsf && stype == dv_profiles[i].video_stype)
@ -299,7 +290,7 @@ const AVDVProfile *av_dv_codec_profile(int width, int height,
#if CONFIG_DVPROFILE
int i;
for (i=0; i<FF_ARRAY_ELEMS(dv_profiles); i++)
for (i = 0; i < FF_ARRAY_ELEMS(dv_profiles); i++)
if (height == dv_profiles[i].height &&
pix_fmt == dv_profiles[i].pix_fmt &&
width == dv_profiles[i].width)

20
libavcodec/dv_tablegen.h
Unescape View File

@ -32,7 +32,7 @@
#define DV_VLC_MAP_LEV_SIZE 23
#else
#define DV_VLC_MAP_RUN_SIZE 64
#define DV_VLC_MAP_LEV_SIZE 512 //FIXME sign was removed so this should be /2 but needs check
#define DV_VLC_MAP_LEV_SIZE 512 // FIXME sign was removed so this should be /2 but needs check
#endif
/* VLC encoding lookup table */
@ -71,23 +71,23 @@ static void dv_vlc_map_tableinit(void)
for (j = 1; j < DV_VLC_MAP_LEV_SIZE; j++) {
if (dv_vlc_map[i][j].size == 0) {
dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc |
(dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
(dv_vlc_map[i - 1][0].vlc <<
dv_vlc_map[0][j].size);
dv_vlc_map[i][j].size = dv_vlc_map[i - 1][0].size +
dv_vlc_map[0][j].size;
}
}
#else
for (j = 1; j < DV_VLC_MAP_LEV_SIZE/2; j++) {
for (j = 1; j < DV_VLC_MAP_LEV_SIZE / 2; j++) {
if (dv_vlc_map[i][j].size == 0) {
dv_vlc_map[i][j].vlc = dv_vlc_map[0][j].vlc |
(dv_vlc_map[i-1][0].vlc << (dv_vlc_map[0][j].size));
dv_vlc_map[i][j].size = dv_vlc_map[i-1][0].size +
(dv_vlc_map[i - 1][0].vlc <<
dv_vlc_map[0][j].size);
dv_vlc_map[i][j].size = dv_vlc_map[i - 1][0].size +
dv_vlc_map[0][j].size;
}
dv_vlc_map[i][((uint16_t)(-j))&0x1ff].vlc =
dv_vlc_map[i][j].vlc | 1;
dv_vlc_map[i][((uint16_t)(-j))&0x1ff].size =
dv_vlc_map[i][j].size;
dv_vlc_map[i][((uint16_t) (-j)) & 0x1ff].vlc = dv_vlc_map[i][j].vlc | 1;
dv_vlc_map[i][((uint16_t) (-j)) & 0x1ff].size = dv_vlc_map[i][j].size;
}
#endif
}

46
libavcodec/dvdata.c
Unescape View File

@ -43,28 +43,28 @@ const uint8_t ff_dv_zigzag248_direct[64] = {
/* unquant tables (not used directly) */
const uint8_t ff_dv_quant_shifts[22][4] = {
{ 3,3,4,4 },
{ 3,3,4,4 },
{ 2,3,3,4 },
{ 2,3,3,4 },
{ 2,2,3,3 },
{ 2,2,3,3 },
{ 1,2,2,3 },
{ 1,2,2,3 },
{ 1,1,2,2 },
{ 1,1,2,2 },
{ 0,1,1,2 },
{ 0,1,1,2 },
{ 0,0,1,1 },
{ 0,0,1,1 },
{ 0,0,0,1 },
{ 0,0,0,0 },
{ 0,0,0,0 },
{ 0,0,0,0 },
{ 0,0,0,0 },
{ 0,0,0,0 },
{ 0,0,0,0 },
{ 0,0,0,0 },
{ 3, 3, 4, 4 },
{ 3, 3, 4, 4 },
{ 2, 3, 3, 4 },
{ 2, 3, 3, 4 },
{ 2, 2, 3, 3 },
{ 2, 2, 3, 3 },
{ 1, 2, 2, 3 },
{ 1, 2, 2, 3 },
{ 1, 1, 2, 2 },
{ 1, 1, 2, 2 },
{ 0, 1, 1, 2 },
{ 0, 1, 1, 2 },
{ 0, 0, 1, 1 },
{ 0, 0, 1, 1 },
{ 0, 0, 0, 1 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
{ 0, 0, 0, 0 },
};
const uint8_t ff_dv_quant_offset[4] = { 6, 3, 0, 1 };
@ -301,7 +301,7 @@ const uint8_t ff_dv_vlc_run[NB_DV_VLC] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
127,
127,
};
const uint8_t ff_dv_vlc_level[NB_DV_VLC] = {

100
libavcodec/dvdec.c
Unescape View File

@ -35,17 +35,18 @@
* DV decoder
*/
#include "libavutil/internal.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "dv.h"
#include "dvdata.h"
#include "get_bits.h"
#include "idctdsp.h"
#include "internal.h"
#include "get_bits.h"
#include "put_bits.h"
#include "simple_idct.h"
#include "dvdata.h"
#include "dv.h"
typedef struct BlockInfo {
const uint32_t *factor_table;
@ -93,7 +94,8 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, int16_t *block)
/* if we must parse a partial VLC, we do it here */
if (partial_bit_count > 0) {
re_cache = re_cache >> partial_bit_count | mb->partial_bit_buffer;
re_cache = re_cache >> partial_bit_count |
mb->partial_bit_buffer;
re_index -= partial_bit_count;
mb->partial_bit_count = 0;
}
@ -106,7 +108,7 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, int16_t *block)
index = NEG_USR32(re_cache, TEX_VLC_BITS);
vlc_len = ff_dv_rl_vlc[index].len;
if (vlc_len < 0) {
index = NEG_USR32((unsigned)re_cache << TEX_VLC_BITS, -vlc_len) +
index = NEG_USR32((unsigned) re_cache << TEX_VLC_BITS, -vlc_len) +
ff_dv_rl_vlc[index].level;
vlc_len = TEX_VLC_BITS - vlc_len;
}
@ -128,7 +130,8 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, int16_t *block)
if (pos >= 64)
break;
level = (level * factor_table[pos] + (1 << (dv_iweight_bits - 1))) >> dv_iweight_bits;
level = (level * factor_table[pos] + (1 << (dv_iweight_bits - 1))) >>
dv_iweight_bits;
block[scan_table[pos]] = level;
UPDATE_CACHE(re, gb);
@ -144,9 +147,8 @@ static inline void bit_copy(PutBitContext *pb, GetBitContext *gb)
put_bits(pb, MIN_CACHE_BITS, get_bits(gb, MIN_CACHE_BITS));
bits_left -= MIN_CACHE_BITS;
}
if (bits_left > 0) {
if (bits_left > 0)
put_bits(pb, bits_left, get_bits(gb, bits_left));
}
}
/* mb_x and mb_y are in units of 8 pixels */
@ -164,19 +166,19 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
PutBitContext pb, vs_pb;
GetBitContext gb;
BlockInfo mb_data[5 * DV_MAX_BPM], *mb, *mb1;
LOCAL_ALIGNED_16(int16_t, sblock, [5*DV_MAX_BPM], [64]);
LOCAL_ALIGNED_16(uint8_t, mb_bit_buffer, [ 80 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
LOCAL_ALIGNED_16(uint8_t, vs_bit_buffer, [5*80 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
LOCAL_ALIGNED_16(int16_t, sblock, [5 * DV_MAX_BPM], [64]);
LOCAL_ALIGNED_16(uint8_t, mb_bit_buffer, [80 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
LOCAL_ALIGNED_16(uint8_t, vs_bit_buffer, [80 * 5 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */
const int log2_blocksize = 3;
int is_field_mode[5];
assert((((int)mb_bit_buffer) & 7) == 0);
assert((((int)vs_bit_buffer) & 7) == 0);
assert((((int) mb_bit_buffer) & 7) == 0);
assert((((int) vs_bit_buffer) & 7) == 0);
memset(sblock, 0, 5*DV_MAX_BPM*sizeof(*sblock));
memset(sblock, 0, 5 * DV_MAX_BPM * sizeof(*sblock));
/* pass 1: read DC and AC coefficients in blocks */
buf_ptr = &s->buf[work_chunk->buf_offset*80];
buf_ptr = &s->buf[work_chunk->buf_offset * 80];
block1 = &sblock[0][0];
mb1 = mb_data;
init_put_bits(&vs_pb, vs_bit_buffer, 5 * 80);
@ -199,17 +201,21 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
if (DV_PROFILE_IS_HD(s->sys)) {
mb->idct_put = s->idct_put[0];
mb->scan_table = s->dv_zigzag[0];
mb->factor_table = &s->idct_factor[(j >= 4)*4*16*64 + class1*16*64 + quant*64];
mb->factor_table = &s->idct_factor[(j >= 4) * 4 * 16 * 64 +
class1 * 16 * 64 +
quant * 64];
is_field_mode[mb_index] |= !j && dct_mode;
} else {
mb->idct_put = s->idct_put[dct_mode && log2_blocksize == 3];
mb->scan_table = s->dv_zigzag[dct_mode];
mb->factor_table = &s->idct_factor[(class1 == 3)*2*22*64 + dct_mode*22*64 +
(quant + ff_dv_quant_offset[class1])*64];
mb->factor_table =
&s->idct_factor[(class1 == 3) * 2 * 22 * 64 +
dct_mode * 22 * 64 +
(quant + ff_dv_quant_offset[class1]) * 64];
}
dc = dc << 2;
/* convert to unsigned because 128 is not added in the
standard IDCT */
* standard IDCT */
dc += 1024;
block[0] = dc;
buf_ptr += last_index >> 3;
@ -220,7 +226,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
dv_decode_ac(&gb, mb, block);
/* write the remaining bits in a new buffer only if the
block is finished */
* block is finished */
if (mb->pos >= 64)
bit_copy(&pb, &gb);
@ -244,7 +250,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
}
}
/* all blocks are finished, so the extra bytes can be used at
the video segment level */
* the video segment level */
if (j >= s->sys->bpm)
bit_copy(&vs_pb, &gb);
}
@ -263,7 +269,8 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
dv_decode_ac(&gb, mb, block);
}
if (mb->pos >= 64 && mb->pos < 127)
av_log(avctx, AV_LOG_ERROR, "AC EOB marker is absent pos=%d\n", mb->pos);
av_log(avctx, AV_LOG_ERROR,
"AC EOB marker is absent pos=%d\n", mb->pos);
block += 64;
mb++;
}
@ -279,22 +286,24 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
if ((s->sys->pix_fmt == AV_PIX_FMT_YUV420P) ||
(s->sys->pix_fmt == AV_PIX_FMT_YUV411P && mb_x >= (704 / 8)) ||
(s->sys->height >= 720 && mb_y != 134)) {
y_stride = (s->frame->linesize[0] << ((!is_field_mode[mb_index]) * log2_blocksize));
y_stride = (s->frame->linesize[0] <<
((!is_field_mode[mb_index]) * log2_blocksize));
} else {
y_stride = (2 << log2_blocksize);
}
y_ptr = s->frame->data[0] + ((mb_y * s->frame->linesize[0] + mb_x) << log2_blocksize);
y_ptr = s->frame->data[0] +
((mb_y * s->frame->linesize[0] + mb_x) << log2_blocksize);
linesize = s->frame->linesize[0] << is_field_mode[mb_index];
mb[0] .idct_put(y_ptr , linesize, block + 0*64);
mb[0].idct_put(y_ptr, linesize, block + 0 * 64);
if (s->sys->video_stype == 4) { /* SD 422 */
mb[2].idct_put(y_ptr + (1 << log2_blocksize) , linesize, block + 2*64);
mb[2].idct_put(y_ptr + (1 << log2_blocksize), linesize, block + 2 * 64);
} else {
mb[1].idct_put(y_ptr + (1 << log2_blocksize) , linesize, block + 1*64);
mb[2].idct_put(y_ptr + y_stride, linesize, block + 2*64);
mb[3].idct_put(y_ptr + (1 << log2_blocksize) + y_stride, linesize, block + 3*64);
mb[1].idct_put(y_ptr + (1 << log2_blocksize), linesize, block + 1 * 64);
mb[2].idct_put(y_ptr + y_stride, linesize, block + 2 * 64);
mb[3].idct_put(y_ptr + (1 << log2_blocksize) + y_stride, linesize, block + 3 * 64);
}
mb += 4;
block += 4*64;
block += 4 * 64;
/* idct_put'ting chrominance */
c_offset = (((mb_y >> (s->sys->pix_fmt == AV_PIX_FMT_YUV420P)) * s->frame->linesize[1] +
@ -302,8 +311,8 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
for (j = 2; j; j--) {
uint8_t *c_ptr = s->frame->data[j] + c_offset;
if (s->sys->pix_fmt == AV_PIX_FMT_YUV411P && mb_x >= (704 / 8)) {
uint64_t aligned_pixels[64/8];
uint8_t *pixels = (uint8_t*)aligned_pixels;
uint64_t aligned_pixels[64 / 8];
uint8_t *pixels = (uint8_t *) aligned_pixels;
uint8_t *c_ptr1, *ptr1;
int x, y;
mb->idct_put(pixels, 8, block);
@ -315,14 +324,17 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
c_ptr1[x] = ptr1[x];
}
}
block += 64; mb++;
block += 64;
mb++;
} else {
y_stride = (mb_y == 134) ? (1 << log2_blocksize) :
s->frame->linesize[j] << ((!is_field_mode[mb_index]) * log2_blocksize);
linesize = s->frame->linesize[j] << is_field_mode[mb_index];
(mb++)-> idct_put(c_ptr , linesize, block); block += 64;
(mb++)->idct_put(c_ptr, linesize, block);
block += 64;
if (s->sys->bpm == 8) {
(mb++)->idct_put(c_ptr + y_stride, linesize, block); block += 64;
(mb++)->idct_put(c_ptr + y_stride, linesize, block);
block += 64;
}
}
}
@ -331,15 +343,14 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
}
/* NOTE: exactly one frame must be given (120000 bytes for NTSC,
144000 bytes for PAL - or twice those for 50Mbps) */
static int dvvideo_decode_frame(AVCodecContext *avctx,
void *data, int *got_frame,
AVPacket *avpkt)
* 144000 bytes for PAL - or twice those for 50Mbps) */
static int dvvideo_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt)
{
uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
DVVideoContext *s = avctx->priv_data;
const uint8_t* vsc_pack;
const uint8_t *vsc_pack;
int apt, is16_9, ret;
const AVDVProfile *sys;
@ -369,10 +380,11 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
return ret;
/* Determine the codec's sample_aspect ratio from the packet */
vsc_pack = buf + 80*5 + 48 + 5;
if ( *vsc_pack == dv_video_control ) {
vsc_pack = buf + 80 * 5 + 48 + 5;
if (*vsc_pack == dv_video_control) {
apt = buf[4] & 0x07;
is16_9 = (vsc_pack && ((vsc_pack[2] & 0x07) == 0x02 || (!apt && (vsc_pack[2] & 0x07) == 0x07)));
is16_9 = (vsc_pack && ((vsc_pack[2] & 0x07) == 0x02 ||
(!apt && (vsc_pack[2] & 0x07) == 0x07)));
ff_set_sar(avctx, s->sys->sar[is16_9]);
}

303
libavcodec/dvenc.c
Unescape View File

@ -24,18 +24,20 @@
* DV encoder
*/
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/pixdesc.h"
#include "config.h"
#include "avcodec.h"
#include "dv.h"
#include "dv_profile_internal.h"
#include "dv_tablegen.h"
#include "fdctdsp.h"
#include "internal.h"
#include "me_cmp.h"
#include "pixblockdsp.h"
#include "put_bits.h"
#include "dv.h"
#include "dv_tablegen.h"
#include "dv_profile_internal.h"
static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
{
@ -80,19 +82,19 @@ static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
}
/* bit budget for AC only in 5 MBs */
static const int vs_total_ac_bits = (100 * 4 + 68*2) * 5;
static const int vs_total_ac_bits = (100 * 4 + 68 * 2) * 5;
static const int mb_area_start[5] = { 1, 6, 21, 43, 64 };
#if CONFIG_SMALL
/* Converts run and level (where level != 0) pair into VLC, returning bit size */
static av_always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc)
/* Convert run and level (where level != 0) pair into VLC, returning bit size */
static av_always_inline int dv_rl2vlc(int run, int level, int sign,
uint32_t *vlc)
{
int size;
if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) {
*vlc = dv_vlc_map[run][level].vlc | sign;
size = dv_vlc_map[run][level].size;
}
else {
} else {
if (level < DV_VLC_MAP_LEV_SIZE) {
*vlc = dv_vlc_map[0][level].vlc | sign;
size = dv_vlc_map[0][level].size;
@ -101,9 +103,9 @@ static av_always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vl
size = 16;
}
if (run) {
*vlc |= ((run < 16) ? dv_vlc_map[run-1][0].vlc :
*vlc |= ((run < 16) ? dv_vlc_map[run - 1][0].vlc :
(0x1f80 | (run - 1))) << size;
size += (run < 16) ? dv_vlc_map[run-1][0].size : 13;
size += (run < 16) ? dv_vlc_map[run - 1][0].size : 13;
}
}
@ -116,17 +118,15 @@ static av_always_inline int dv_rl2vlc_size(int run, int level)
if (run < DV_VLC_MAP_RUN_SIZE && level < DV_VLC_MAP_LEV_SIZE) {
size = dv_vlc_map[run][level].size;
}
else {
} else {
size = (level < DV_VLC_MAP_LEV_SIZE) ? dv_vlc_map[0][level].size : 16;
if (run) {
size += (run < 16) ? dv_vlc_map[run-1][0].size : 13;
}
if (run)
size += (run < 16) ? dv_vlc_map[run - 1][0].size : 13;
}
return size;
}
#else
static av_always_inline int dv_rl2vlc(int run, int l, int sign, uint32_t* vlc)
static av_always_inline int dv_rl2vlc(int run, int l, int sign, uint32_t *vlc)
{
*vlc = dv_vlc_map[run][l].vlc | sign;
return dv_vlc_map[run][l].size;
@ -152,17 +152,18 @@ typedef struct EncBlockInfo {
uint32_t partial_bit_buffer; /* we can't use uint16_t here */
} EncBlockInfo;
static av_always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi,
PutBitContext* pb_pool,
PutBitContext* pb_end)
static av_always_inline PutBitContext *dv_encode_ac(EncBlockInfo *bi,
PutBitContext *pb_pool,
PutBitContext *pb_end)
{
int prev, bits_left;
PutBitContext* pb = pb_pool;
PutBitContext *pb = pb_pool;
int size = bi->partial_bit_count;
uint32_t vlc = bi->partial_bit_buffer;
bi->partial_bit_count = bi->partial_bit_buffer = 0;
for (;;){
bi->partial_bit_count =
bi->partial_bit_buffer = 0;
for (;;) {
/* Find suitable storage space */
for (; size > (bits_left = put_bits_left(pb)); pb++) {
if (bits_left) {
@ -186,21 +187,25 @@ static av_always_inline PutBitContext* dv_encode_ac(EncBlockInfo* bi,
/* Construct the next VLC */
prev = bi->cur_ac;
bi->cur_ac = bi->next[prev];
if (bi->cur_ac < 64){
size = dv_rl2vlc(bi->cur_ac - prev - 1, bi->mb[bi->cur_ac], bi->sign[bi->cur_ac], &vlc);
if (bi->cur_ac < 64) {
size = dv_rl2vlc(bi->cur_ac - prev - 1, bi->mb[bi->cur_ac],
bi->sign[bi->cur_ac], &vlc);
} else {
size = 4; vlc = 6; /* End Of Block stamp */
size = 4;
vlc = 6; /* End Of Block stamp */
}
}
return pb;
}
static av_always_inline int dv_guess_dct_mode(DVVideoContext *s, uint8_t *data, int linesize) {
static av_always_inline int dv_guess_dct_mode(DVVideoContext *s, uint8_t *data,
int linesize)
{
if (s->avctx->flags & CODEC_FLAG_INTERLACED_DCT) {
int ps = s->ildct_cmp(NULL, data, NULL, linesize, 8) - 400;
if (ps > 0) {
int is = s->ildct_cmp(NULL, data , NULL, linesize<<1, 4) +
s->ildct_cmp(NULL, data + linesize, NULL, linesize<<1, 4);
int is = s->ildct_cmp(NULL, data, NULL, linesize << 1, 4) +
s->ildct_cmp(NULL, data + linesize, NULL, linesize << 1, 4);
return ps > is;
}
}
@ -230,33 +235,38 @@ static const int dv_weight_248[64] = {
195068, 170627, 175557, 153560, 188995, 174609, 165371, 144651,
};
static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, int linesize, DVVideoContext *s, int bias)
static av_always_inline int dv_init_enc_block(EncBlockInfo *bi, uint8_t *data,
int linesize, DVVideoContext *s,
int bias)
{
const int *weight;
const uint8_t* zigzag_scan;
const uint8_t *zigzag_scan;
LOCAL_ALIGNED_16(int16_t, blk, [64]);
int i, area;
/* We offer two different methods for class number assignment: the
method suggested in SMPTE 314M Table 22, and an improved
method. The SMPTE method is very conservative; it assigns class
3 (i.e. severe quantization) to any block where the largest AC
component is greater than 36. Libav's DV encoder tracks AC bit
consumption precisely, so there is no need to bias most blocks
towards strongly lossy compression. Instead, we assign class 2
to most blocks, and use class 3 only when strictly necessary
(for blocks whose largest AC component exceeds 255). */
* method suggested in SMPTE 314M Table 22, and an improved
* method. The SMPTE method is very conservative; it assigns class
* 3 (i.e. severe quantization) to any block where the largest AC
* component is greater than 36. Libav's DV encoder tracks AC bit
* consumption precisely, so there is no need to bias most blocks
* towards strongly lossy compression. Instead, we assign class 2
* to most blocks, and use class 3 only when strictly necessary
* (for blocks whose largest AC component exceeds 255). */
#if 0 /* SMPTE spec method */
static const int classes[] = {12, 24, 36, 0xffff};
static const int classes[] = { 12, 24, 36, 0xffff };
#else /* improved Libav method */
static const int classes[] = {-1, -1, 255, 0xffff};
static const int classes[] = { -1, -1, 255, 0xffff };
#endif
int max = classes[0];
int prev = 0;
assert((((int)blk) & 15) == 0);
assert((((int) blk) & 15) == 0);
bi->area_q[0] = bi->area_q[1] = bi->area_q[2] = bi->area_q[3] = 0;
bi->area_q[0] =
bi->area_q[1] =
bi->area_q[2] =
bi->area_q[3] = 0;
bi->partial_bit_count = 0;
bi->partial_bit_buffer = 0;
bi->cur_ac = 0;
@ -265,9 +275,10 @@ static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, i
s->get_pixels(blk, data, linesize);
s->fdct[bi->dct_mode](blk);
} else {
/* We rely on the fact that encoding all zeros leads to an immediate EOB,
which is precisely what the spec calls for in the "dummy" blocks. */
memset(blk, 0, 64*sizeof(*blk));
/* We rely on the fact that encoding all zeros leads to an immediate
* EOB, which is precisely what the spec calls for in the "dummy"
* blocks. */
memset(blk, 0, 64 * sizeof(*blk));
bi->dct_mode = 0;
}
bi->mb[0] = blk[0];
@ -278,26 +289,28 @@ static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, i
for (area = 0; area < 4; area++) {
bi->prev[area] = prev;
bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :)
for (i = mb_area_start[area]; i < mb_area_start[area+1]; i++) {
for (i = mb_area_start[area]; i < mb_area_start[area + 1]; i++) {
int level = blk[zigzag_scan[i]];
if (level + 15 > 30U) {
bi->sign[i] = (level >> 31) & 1;
/* weight it and and shift down into range, adding for rounding */
/* the extra division by a factor of 2^4 reverses the 8x expansion of the DCT
AND the 2x doubling of the weights */
level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits+3))) >> (dv_weight_bits+4);
/* Weight it and and shift down into range, adding for rounding.
* The extra division by a factor of 2^4 reverses the 8x
* expansion of the DCT AND the 2x doubling of the weights. */
level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits + 3))) >>
(dv_weight_bits + 4);
bi->mb[i] = level;
if (level > max)
max = level;
bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, level);
bi->next[prev]= i;
bi->next[prev] = i;
prev = i;
}
}
}
bi->next[prev]= i;
for (bi->cno = 0; max > classes[bi->cno]; bi->cno++);
bi->next[prev] = i;
for (bi->cno = 0; max > classes[bi->cno]; bi->cno++)
;
bi->cno += bias;
@ -308,29 +321,34 @@ static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, i
for (area = 0; area < 4; area++) {
bi->prev[area] = prev;
bi->bit_size[area] = 1; // 4 areas 4 bits for EOB :)
for (; i < mb_area_start[area+1]; i = bi->next[i]) {
for (; i < mb_area_start[area + 1]; i = bi->next[i]) {
bi->mb[i] >>= 1;
if (bi->mb[i]) {
bi->bit_size[area] += dv_rl2vlc_size(i - prev - 1, bi->mb[i]);
bi->next[prev]= i;
bi->next[prev] = i;
prev = i;
}
}
}
bi->next[prev]= i;
bi->next[prev] = i;
}
return bi->bit_size[0] + bi->bit_size[1] + bi->bit_size[2] + bi->bit_size[3];
return bi->bit_size[0] + bi->bit_size[1] +
bi->bit_size[2] + bi->bit_size[3];
}
static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos)
static inline void dv_guess_qnos(EncBlockInfo *blks, int *qnos)
{
int size[5];
int i, j, k, a, prev, a2;
EncBlockInfo* b;
EncBlockInfo *b;
size[0] = size[1] = size[2] = size[3] = size[4] = 1 << 24;
size[0] =
size[1] =
size[2] =
size[3] =
size[4] = 1 << 24;
do {
b = blks;
for (i = 0; i < 5; i++) {
@ -345,27 +363,27 @@ static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos)
b->bit_size[a] = 1; // 4 areas 4 bits for EOB :)
b->area_q[a]++;
prev = b->prev[a];
assert(b->next[prev] >= mb_area_start[a+1] || b->mb[prev]);
for (k = b->next[prev] ; k < mb_area_start[a+1]; k = b->next[k]) {
assert(b->next[prev] >= mb_area_start[a + 1] || b->mb[prev]);
for (k = b->next[prev]; k < mb_area_start[a + 1]; k = b->next[k]) {
b->mb[k] >>= 1;
if (b->mb[k]) {
b->bit_size[a] += dv_rl2vlc_size(k - prev - 1, b->mb[k]);
prev = k;
} else {
if (b->next[k] >= mb_area_start[a+1] && b->next[k]<64){
for (a2 = a + 1; b->next[k] >= mb_area_start[a2+1]; a2++)
if (b->next[k] >= mb_area_start[a + 1] && b->next[k] < 64) {
for (a2 = a + 1; b->next[k] >= mb_area_start[a2 + 1]; a2++)
b->prev[a2] = prev;
assert(a2 < 4);
assert(b->mb[b->next[k]]);
b->bit_size[a2] += dv_rl2vlc_size(b->next[k] - prev - 1, b->mb[b->next[k]])
-dv_rl2vlc_size(b->next[k] - k - 1, b->mb[b->next[k]]);
assert(b->prev[a2] == k && (a2 + 1 >= 4 || b->prev[a2+1] != k));
b->bit_size[a2] += dv_rl2vlc_size(b->next[k] - prev - 1, b->mb[b->next[k]]) -
dv_rl2vlc_size(b->next[k] - k - 1, b->mb[b->next[k]]);
assert(b->prev[a2] == k && (a2 + 1 >= 4 || b->prev[a2 + 1] != k));
b->prev[a2] = prev;
}
b->next[prev] = b->next[k];
}
}
b->prev[a+1]= prev;
b->prev[a + 1] = prev;
}
size[i] += b->bit_size[a];
}
@ -373,18 +391,17 @@ static inline void dv_guess_qnos(EncBlockInfo* blks, int* qnos)
if (vs_total_ac_bits >= size[0] + size[1] + size[2] + size[3] + size[4])
return;
}
} while (qnos[0]|qnos[1]|qnos[2]|qnos[3]|qnos[4]);
} while (qnos[0] | qnos[1] | qnos[2] | qnos[3] | qnos[4]);
for (a = 2; a == 2 || vs_total_ac_bits < size[0]; a += a){
for (a = 2; a == 2 || vs_total_ac_bits < size[0]; a += a) {
b = blks;
size[0] = 5 * 6 * 4; //EOB
for (j = 0; j < 6 *5; j++, b++) {
size[0] = 5 * 6 * 4; // EOB
for (j = 0; j < 6 * 5; j++, b++) {
prev = b->prev[0];
for (k = b->next[prev]; k < 64; k = b->next[k]) {
if (b->mb[k] < a && b->mb[k] > -a){
if (b->mb[k] < a && b->mb[k] > -a) {
b->next[prev] = b->next[k];
}else{
} else {
size[0] += dv_rl2vlc_size(k - prev - 1, b->mb[k]);
prev = k;
}
@ -399,18 +416,18 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
DVwork_chunk *work_chunk = arg;
int mb_index, i, j;
int mb_x, mb_y, c_offset, linesize, y_stride;
uint8_t* y_ptr;
uint8_t* dif;
uint8_t *y_ptr;
uint8_t *dif;
LOCAL_ALIGNED_8(uint8_t, scratch, [128]);
EncBlockInfo enc_blks[5*DV_MAX_BPM];
PutBitContext pbs[5*DV_MAX_BPM];
PutBitContext* pb;
EncBlockInfo* enc_blk;
EncBlockInfo enc_blks[5 * DV_MAX_BPM];
PutBitContext pbs[5 * DV_MAX_BPM];
PutBitContext *pb;
EncBlockInfo *enc_blk;
int vs_bit_size = 0;
int qnos[5] = {15, 15, 15, 15, 15}; /* No quantization */
int* qnosp = &qnos[0];
int qnos[5] = { 15, 15, 15, 15, 15 }; /* No quantization */
int *qnosp = &qnos[0];
dif = &s->buf[work_chunk->buf_offset*80];
dif = &s->buf[work_chunk->buf_offset * 80];
enc_blk = &enc_blks[0];
for (mb_index = 0; mb_index < 5; mb_index++) {
dv_calculate_mb_xy(s, work_chunk, mb_index, &mb_x, &mb_y);
@ -423,21 +440,22 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
} else {
y_stride = 16;
}
y_ptr = s->frame->data[0] + ((mb_y * s->frame->linesize[0] + mb_x) << 3);
y_ptr = s->frame->data[0] +
((mb_y * s->frame->linesize[0] + mb_x) << 3);
linesize = s->frame->linesize[0];
if (s->sys->video_stype == 4) { /* SD 422 */
vs_bit_size +=
dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) +
dv_init_enc_block(enc_blk+1, NULL , linesize, s, 0) +
dv_init_enc_block(enc_blk+2, y_ptr + 8 , linesize, s, 0) +
dv_init_enc_block(enc_blk+3, NULL , linesize, s, 0);
dv_init_enc_block(enc_blk + 0, y_ptr, linesize, s, 0) +
dv_init_enc_block(enc_blk + 1, NULL, linesize, s, 0) +
dv_init_enc_block(enc_blk + 2, y_ptr + 8, linesize, s, 0) +
dv_init_enc_block(enc_blk + 3, NULL, linesize, s, 0);
} else {
vs_bit_size +=
dv_init_enc_block(enc_blk+0, y_ptr , linesize, s, 0) +
dv_init_enc_block(enc_blk+1, y_ptr + 8 , linesize, s, 0) +
dv_init_enc_block(enc_blk+2, y_ptr + y_stride, linesize, s, 0) +
dv_init_enc_block(enc_blk+3, y_ptr + 8 + y_stride, linesize, s, 0);
dv_init_enc_block(enc_blk + 0, y_ptr, linesize, s, 0) +
dv_init_enc_block(enc_blk + 1, y_ptr + 8, linesize, s, 0) +
dv_init_enc_block(enc_blk + 2, y_ptr + y_stride, linesize, s, 0) +
dv_init_enc_block(enc_blk + 3, y_ptr + 8 + y_stride, linesize, s, 0);
}
enc_blk += 4;
@ -449,12 +467,18 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
linesize = s->frame->linesize[j];
y_stride = (mb_y == 134) ? 8 : (s->frame->linesize[j] << 3);
if (s->sys->pix_fmt == AV_PIX_FMT_YUV411P && mb_x >= (704 / 8)) {
uint8_t* d;
uint8_t* b = scratch;
uint8_t *d;
uint8_t *b = scratch;
for (i = 0; i < 8; i++) {
d = c_ptr + (linesize << 3);
b[0] = c_ptr[0]; b[1] = c_ptr[1]; b[2] = c_ptr[2]; b[3] = c_ptr[3];
b[4] = d[0]; b[5] = d[1]; b[6] = d[2]; b[7] = d[3];
b[0] = c_ptr[0];
b[1] = c_ptr[1];
b[2] = c_ptr[2];
b[3] = c_ptr[3];
b[4] = d[0];
b[5] = d[1];
b[6] = d[2];
b[7] = d[3];
c_ptr += linesize;
b += 16;
}
@ -462,10 +486,10 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
linesize = 16;
}
vs_bit_size += dv_init_enc_block( enc_blk++, c_ptr , linesize, s, 1);
if (s->sys->bpm == 8) {
vs_bit_size += dv_init_enc_block(enc_blk++, c_ptr + y_stride, linesize, s, 1);
}
vs_bit_size += dv_init_enc_block(enc_blk++, c_ptr, linesize, s, 1);
if (s->sys->bpm == 8)
vs_bit_size += dv_init_enc_block(enc_blk++, c_ptr + y_stride,
linesize, s, 1);
}
}
@ -473,49 +497,50 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
dv_guess_qnos(&enc_blks[0], qnosp);
/* DIF encoding process */
for (j=0; j<5*s->sys->bpm;) {
for (j = 0; j < 5 * s->sys->bpm;) {
int start_mb = j;
dif[3] = *qnosp++;
dif += 4;
/* First pass over individual cells only */
for (i=0; i<s->sys->bpm; i++, j++) {
int sz = s->sys->block_sizes[i]>>3;
for (i = 0; i < s->sys->bpm; i++, j++) {
int sz = s->sys->block_sizes[i] >> 3;
init_put_bits(&pbs[j], dif, sz);
put_sbits(&pbs[j], 9, ((enc_blks[j].mb[0] >> 3) - 1024 + 2) >> 2);
put_bits(&pbs[j], 1, enc_blks[j].dct_mode);
put_bits(&pbs[j], 2, enc_blks[j].cno);
dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j+1]);
dv_encode_ac(&enc_blks[j], &pbs[j], &pbs[j + 1]);
dif += sz;
}
/* Second pass over each MB space */
pb = &pbs[start_mb];
for (i=0; i<s->sys->bpm; i++) {
if (enc_blks[start_mb+i].partial_bit_count)
pb = dv_encode_ac(&enc_blks[start_mb+i], pb, &pbs[start_mb+s->sys->bpm]);
}
for (i = 0; i < s->sys->bpm; i++)
if (enc_blks[start_mb + i].partial_bit_count)
pb = dv_encode_ac(&enc_blks[start_mb + i], pb,
&pbs[start_mb + s->sys->bpm]);
}
/* Third and final pass over the whole video segment space */
pb = &pbs[0];
for (j=0; j<5*s->sys->bpm; j++) {
for (j = 0; j < 5 * s->sys->bpm; j++) {
if (enc_blks[j].partial_bit_count)
pb = dv_encode_ac(&enc_blks[j], pb, &pbs[s->sys->bpm*5]);
pb = dv_encode_ac(&enc_blks[j], pb, &pbs[s->sys->bpm * 5]);
if (enc_blks[j].partial_bit_count)
av_log(avctx, AV_LOG_ERROR, "ac bitstream overflow\n");
}
for (j=0; j<5*s->sys->bpm; j++) {
for (j = 0; j < 5 * s->sys->bpm; j++) {
int pos;
int size = pbs[j].size_in_bits >> 3;
flush_put_bits(&pbs[j]);
pos = put_bits_count(&pbs[j]) >> 3;
if (pos > size) {
av_log(avctx, AV_LOG_ERROR, "bitstream written beyond buffer size\n");
av_log(avctx, AV_LOG_ERROR,
"bitstream written beyond buffer size\n");
return -1;
}
memset(pbs[j].buf + pos, 0xff, size - pos);
@ -525,7 +550,7 @@ static int dv_encode_video_segment(AVCodecContext *avctx, void *arg)
}
static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c,
uint8_t* buf)
uint8_t *buf)
{
/*
* Here's what SMPTE314M says about these two:
@ -548,10 +573,11 @@ static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c,
int apt = (c->sys->pix_fmt == AV_PIX_FMT_YUV420P ? 0 : 1);
uint8_t aspect = 0;
if ((int)(av_q2d(c->avctx->sample_aspect_ratio) * c->avctx->width / c->avctx->height * 10) >= 17) /* 16:9 */
if ((int) (av_q2d(c->avctx->sample_aspect_ratio) *
c->avctx->width / c->avctx->height * 10) >= 17) /* 16:9 */
aspect = 0x02;
buf[0] = (uint8_t)pack_id;
buf[0] = (uint8_t) pack_id;
switch (pack_id) {
case dv_header525: /* I can't imagine why these two weren't defined as real */
case dv_header625: /* packs in SMPTE314M -- they definitely look like ones */
@ -591,16 +617,19 @@ static inline int dv_write_pack(enum dv_pack_type pack_id, DVVideoContext *c,
buf[4] = 0xff; /* reserved -- always 1 */
break;
default:
buf[1] = buf[2] = buf[3] = buf[4] = 0xff;
buf[1] =
buf[2] =
buf[3] =
buf[4] = 0xff;
}
return 5;
}
static inline int dv_write_dif_id(enum dv_section_type t, uint8_t chan_num,
uint8_t seq_num, uint8_t dif_num,
uint8_t* buf)
uint8_t *buf)
{
buf[0] = (uint8_t)t; /* Section type */
buf[0] = (uint8_t) t; /* Section type */
buf[1] = (seq_num << 4) | /* DIF seq number 0-9 for 525/60; 0-11 for 625/50 */
(chan_num << 3) | /* FSC: for 50Mb/s 0 - first channel; 1 - second */
7; /* reserved -- always 1 */
@ -608,19 +637,16 @@ static inline int dv_write_dif_id(enum dv_section_type t, uint8_t chan_num,
return 3;
}
static inline int dv_write_ssyb_id(uint8_t syb_num, uint8_t fr, uint8_t* buf)
static inline int dv_write_ssyb_id(uint8_t syb_num, uint8_t fr, uint8_t *buf)
{
if (syb_num == 0 || syb_num == 6) {
buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */
(0 << 4) | /* AP3 (Subcode application ID) */
0x0f; /* reserved -- always 1 */
}
else if (syb_num == 11) {
} else if (syb_num == 11) {
buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */
0x7f; /* reserved -- always 1 */
}
else {
} else {
buf[0] = (fr << 7) | /* FR ID 1 - first half of each channel; 0 - second */
(0 << 4) | /* APT (Track application ID) */
0x0f; /* reserved -- always 1 */
@ -631,7 +657,7 @@ static inline int dv_write_ssyb_id(uint8_t syb_num, uint8_t fr, uint8_t* buf)
return 3;
}
static void dv_format_frame(DVVideoContext* c, uint8_t* buf)
static void dv_format_frame(DVVideoContext *c, uint8_t *buf)
{
int chan, i, j, k;
@ -641,14 +667,15 @@ static void dv_format_frame(DVVideoContext* c, uint8_t* buf)
/* DV header: 1DIF */
buf += dv_write_dif_id(dv_sect_header, chan, i, 0, buf);
buf += dv_write_pack((c->sys->dsf ? dv_header625 : dv_header525), c, buf);
buf += dv_write_pack((c->sys->dsf ? dv_header625 : dv_header525),
c, buf);
buf += 72; /* unused bytes */
/* DV subcode: 2DIFs */
for (j = 0; j < 2; j++) {
buf += dv_write_dif_id(dv_sect_subcode, chan, i, j, buf);
for (k = 0; k < 6; k++)
buf += dv_write_ssyb_id(k, (i < c->sys->difseg_size/2), buf) + 5;
buf += dv_write_ssyb_id(k, (i < c->sys->difseg_size / 2), buf) + 5;
buf += 29; /* unused bytes */
}
@ -657,30 +684,29 @@ static void dv_format_frame(DVVideoContext* c, uint8_t* buf)
buf += dv_write_dif_id(dv_sect_vaux, chan, i, j, buf);
buf += dv_write_pack(dv_video_source, c, buf);
buf += dv_write_pack(dv_video_control, c, buf);
buf += 7*5;
buf += 7 * 5;
buf += dv_write_pack(dv_video_source, c, buf);
buf += dv_write_pack(dv_video_control, c, buf);
buf += 4*5 + 2; /* unused bytes */
buf += 4 * 5 + 2; /* unused bytes */
}
/* DV Audio/Video: 135 Video DIFs + 9 Audio DIFs */
for (j = 0; j < 135; j++) {
if (j%15 == 0) {
if (j % 15 == 0) {
memset(buf, 0xff, 80);
buf += dv_write_dif_id(dv_sect_audio, chan, i, j/15, buf);
buf += dv_write_dif_id(dv_sect_audio, chan, i, j / 15, buf);
buf += 77; /* audio control & shuffled PCM audio */
}
buf += dv_write_dif_id(dv_sect_video, chan, i, j, buf);
buf += 77; /* 1 video macroblock: 1 bytes control
4 * 14 bytes Y 8x8 data
10 bytes Cr 8x8 data
10 bytes Cb 8x8 data */
* 4 * 14 bytes Y 8x8 data
* 10 bytes Cr 8x8 data
* 10 bytes Cb 8x8 data */
}
}
}
}
static int dvvideo_encode_frame(AVCodecContext *c, AVPacket *pkt,
const AVFrame *frame, int *got_packet)
{
@ -728,6 +754,7 @@ AVCodec ff_dvvideo_encoder = {
.close = dvvideo_encode_close,
.capabilities = CODEC_CAP_SLICE_THREADS,
.pix_fmts = (const enum AVPixelFormat[]) {
AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
},
};

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